Rhonda Eisenberg, a Greeley, Colorado high school Spanish teacher, has pled guilty to charges stemming from a sexual relationship she had with a student in 2010, reports CBS Denver. The student was 17 years old at the time. The student and Eisenberg, who is now 44, had a daughter together. Also, Eisenberg was the student’s legal guardian after his parents moved to Mexico. As part of the plea agreement, Eisenberg will spend 90 days in jail and must register as a sex offender.